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Add preclaim functionality to transactors:

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The preclaim() function performs static validity
analysis of transactions using limited information
from a ledger.
This commit is contained in:
Edward Hennis
2015-07-27 17:43:14 -04:00
committed by Vinnie Falco
parent ad8e9a76ed
commit 9b80081122
26 changed files with 1056 additions and 543 deletions
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99
src/ripple/app/tx/impl/SetAccount.cpp
View File

@@ -24,7 +24,7 @@
#include <ripple/protocol/Feature.h>
#include <ripple/protocol/Indexes.h>
#include <ripple/protocol/Quality.h>
#include <ripple/protocol/TxFlags.h>
#include <ripple/protocol/st.h>
#include <ripple/ledger/View.h>
namespace ripple {
@@ -104,13 +104,60 @@ SetAccount::preflight (PreflightContext const& ctx)
}
}
auto const messageKey = tx[~sfMessageKey];
if (messageKey && messageKey->size() > PUBLIC_BYTES_MAX)
{
JLOG(j.trace) << "message key too long";
return telBAD_PUBLIC_KEY;
}
auto const domain = tx[~sfDomain];
if (domain&& domain->size() > DOMAIN_BYTES_MAX)
{
JLOG(j.trace) << "domain too long";
return telBAD_DOMAIN;
}
return preflight2(ctx);
}
TER
SetAccount::preclaim(PreclaimContext const& ctx)
{
auto const id = ctx.tx[sfAccount];
std::uint32_t const uTxFlags = ctx.tx.getFlags();
auto const sle = ctx.view.read(
keylet::account(id));
std::uint32_t const uFlagsIn = sle->getFieldU32(sfFlags);
std::uint32_t const uSetFlag = ctx.tx.getFieldU32(sfSetFlag);
// legacy AccountSet flags
bool bSetRequireAuth = (uTxFlags & tfRequireAuth) || (uSetFlag == asfRequireAuth);
//
// RequireAuth
//
if (bSetRequireAuth && !(uFlagsIn & lsfRequireAuth))
{
if (!dirIsEmpty(ctx.view,
keylet::ownerDir(id)))
{
JLOG(ctx.j.trace) << "Retry: Owner directory not empty.";
return (ctx.flags & tapRETRY) ? terOWNERS : tecOWNERS;
}
}
return tesSUCCESS;
}
TER
SetAccount::doApply ()
{
std::uint32_t const uTxFlags = tx().getFlags ();
std::uint32_t const uTxFlags = ctx_.tx.getFlags ();
auto const sle = view().peek(
keylet::account(account_));
@@ -118,8 +165,8 @@ SetAccount::doApply ()
std::uint32_t const uFlagsIn = sle->getFieldU32 (sfFlags);
std::uint32_t uFlagsOut = uFlagsIn;
std::uint32_t const uSetFlag = tx().getFieldU32 (sfSetFlag);
std::uint32_t const uClearFlag = tx().getFieldU32 (sfClearFlag);
std::uint32_t const uSetFlag = ctx_.tx.getFieldU32 (sfSetFlag);
std::uint32_t const uClearFlag = ctx_.tx.getFieldU32 (sfClearFlag);
// legacy AccountSet flags
bool bSetRequireDest = (uTxFlags & TxFlag::requireDestTag) || (uSetFlag == asfRequireDest);
@@ -134,13 +181,6 @@ SetAccount::doApply ()
//
if (bSetRequireAuth && !(uFlagsIn & lsfRequireAuth))
{
if (! dirIsEmpty (view(),
keylet::ownerDir(account_)))
{
j_.trace << "Retry: Owner directory not empty.";
return (view().flags() & tapRETRY) ? terOWNERS : tecOWNERS;
}
j_.trace << "Set RequireAuth.";
uFlagsOut |= lsfRequireAuth;
}
@@ -199,8 +239,9 @@ SetAccount::doApply ()
// Prevent transaction changes until we're ready.
if (view().flags() & tapENABLE_TESTING ||
view().rules().enabled(featureMultiSign, ctx_.config.features))
return tecNO_ALTERNATIVE_KEY;
view().rules().enabled(featureMultiSign,
ctx_.app.config().features))
return tecNO_ALTERNATIVE_KEY;
return tecNO_REGULAR_KEY;
}
@@ -277,9 +318,9 @@ SetAccount::doApply ()
//
// EmailHash
//
if (tx().isFieldPresent (sfEmailHash))
if (ctx_.tx.isFieldPresent (sfEmailHash))
{
uint128 const uHash = tx().getFieldH128 (sfEmailHash);
uint128 const uHash = ctx_.tx.getFieldH128 (sfEmailHash);
if (!uHash)
{
@@ -296,9 +337,9 @@ SetAccount::doApply ()
//
// WalletLocator
//
if (tx().isFieldPresent (sfWalletLocator))
if (ctx_.tx.isFieldPresent (sfWalletLocator))
{
uint256 const uHash = tx().getFieldH256 (sfWalletLocator);
uint256 const uHash = ctx_.tx.getFieldH256 (sfWalletLocator);
if (!uHash)
{
@@ -315,15 +356,9 @@ SetAccount::doApply ()
//
// MessageKey
//
if (tx().isFieldPresent (sfMessageKey))
if (ctx_.tx.isFieldPresent (sfMessageKey))
{
Blob const messageKey = tx().getFieldVL (sfMessageKey);
if (messageKey.size () > PUBLIC_BYTES_MAX)
{
j_.trace << "message key too long";
return telBAD_PUBLIC_KEY;
}
Blob const messageKey = ctx_.tx.getFieldVL (sfMessageKey);
if (messageKey.empty ())
{
@@ -340,15 +375,9 @@ SetAccount::doApply ()
//
// Domain
//
if (tx().isFieldPresent (sfDomain))
if (ctx_.tx.isFieldPresent (sfDomain))
{
Blob const domain = tx().getFieldVL (sfDomain);
if (domain.size () > DOMAIN_BYTES_MAX)
{
j_.trace << "domain too long";
return telBAD_DOMAIN;
}
Blob const domain = ctx_.tx.getFieldVL (sfDomain);
if (domain.empty ())
{
@@ -365,9 +394,9 @@ SetAccount::doApply ()
//
// TransferRate
//
if (tx().isFieldPresent (sfTransferRate))
if (ctx_.tx.isFieldPresent (sfTransferRate))
{
std::uint32_t uRate = tx().getFieldU32 (sfTransferRate);
std::uint32_t uRate = ctx_.tx.getFieldU32 (sfTransferRate);
if (uRate == 0 || uRate == QUALITY_ONE)
{